/*
* Copyright (C) 2008 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#import "config.h"
#import "AccessibilityObject.h"
#if HAVE(ACCESSIBILITY)
#import "WebAccessibilityObjectWrapper.h"
#import "Widget.h"
namespace WebCore {
void AccessibilityObject::detachFromParent()
{
if (isAttachment())
overrideAttachmentParent(0);
}
void AccessibilityObject::overrideAttachmentParent(AccessibilityObject* parent)
{
if (!isAttachment())
return;
id parentWrapper = nil;
if (parent) {
if (parent->accessibilityIsIgnored())
parent = parent->parentObjectUnignored();
parentWrapper = parent->wrapper();
}
[[wrapper() attachmentView] accessibilitySetOverrideValue:parentWrapper forAttribute:NSAccessibilityParentAttribute];
}
bool AccessibilityObject::accessibilityIgnoreAttachment() const
{
// FrameView attachments are now handled by AccessibilityScrollView,
// so if this is the attachment, it should be ignored.
Widget* widget = 0;
if (isAttachment() && (widget = widgetForAttachmentView()) && widget->isFrameView())
return true;
if ([wrapper() attachmentView])
return [[wrapper() attachmentView] accessibilityIsIgnored];
// Attachments are ignored by default (unless we determine that we should expose them).
return true;
}
AccessibilityObjectInclusion AccessibilityObject::accessibilityPlatformIncludesObject() const
{
if (isMenuListPopup() || isMenuListOption())
return IgnoreObject;
// Never expose an unknown object on the Mac. Clients of the AX API will not know what to do with it.
// Special case is when the unknown object is actually an attachment.
if (roleValue() == UnknownRole && !isAttachment())
return IgnoreObject;
return DefaultBehavior;
}
} // WebCore
#endif // HAVE(ACCESSIBILITY)